Radiator.



Patented Dot. 2, |900.

F. SCHWEDTMANN.

' R'DITOR.

(Application-Bled Feb. 27, 1899.)

'(Nn Model.)

H11 We S14/vanto@ witnesses Y F. Schwedtmann /w/d M M se., www, A

UNTTED STATES PATENT OFFICE.

FERDINAND'SO'HWEDTMANN, OF ST. LOUIS, MISSOURI.

RADIATOR.

SPECIFICATION forming` part of Letters Patent No. 658,928, dated October2, 1900.

I Application filed February 27, 1899. Serial No. 706,992. (No model.)

To @ZZ whom it may concern:

Be it known that I, FERDINAND SOHWEDT- MANN, a citizen of the UnitedStates of America, residing at St. Louis, in the State of Missouri, haveinvented a certain new and useful Radiator, of which the following issuch a full, clear, and exact description as will enable any oneskilledin the art to which it appertains to makeand use the same,reference being had to the accompanying drawings, forming part of thisspecification.

The object of my invention is to construct a radiator for steam or hotwater in which the radiating portions are made of sheet metal, such asthin wrought-iron, and to provide means for connecting the severalsections of the radiator together as effectively as can be done with theordinary cast-iron radiator.

My invention consists .in various novel features and details ofconstruction, all of which are described in the following specificationand pointed out in the claims aixed hereto.

In the accompanying drawings,which illustrate a two-column radiator madein accordance with my invention, Figure 1 is a side elevation. Fig. 2 isan enlarged section on the line 2 2 of Fig. 1. Fig. 3 is a View, also onan enlarged scale, similar to Fig. 2, but showing a slight modication.Fig. 4 is a section, also on an enlarged scale, on the line 4 4 of Fig.1, but showing thetsection in an uncompleted state. Fig. 5 is anenlarged section on the line 5 5 of Fig. 1, showing two sections joinedtogether. Fig. 6 is a side elevation showing the lower portion of one ofthe leg or end sections, and Fig. '7 is a section on the line '7 7 ofFig. 6.

Like marks of reference refer to similar parts in the several views ofthe drawings.

Each section of the radiator consists of a radiating portion and base,the former of which is formed of two parts 10 and 11, stamped out ofsheet metal, preferably thin wrought-iron. In order to secure the parts10 and 11 together, I form on the edges of the part 10a flange 12 and onthe edges of the part 11 a flange 13, preferably of greater width thanfiange 12, which is bent around and firmly pressed against the sides ofthe liange 12. Between the lianges 12 and 13 may be placed cement orother suitable substance to render the joints steam or water tight. Inthe forms shown in Figs. 1 and 2 the metal is cut away between the twocolumns or radiating portions of the section, leaving an opening 14; butin place of this the metal of the parts 10 and 11 may be allowed to forma web 15 between the two columns, as shown in Fig. 3. In this case itwill only be necessary to secure the two parts of the web together byrivets 16, as any slight leakage which may take place between the twocolumns will not in any way affect the efficiency of the radiator. Inplace of the method of joining the parts 10 and 11 shown in Figs. 2 and3 the lianges 12 and 13 may be made of the same width as shown in Fig. 4and either secured together by rivets 17, brazed, or secured together inany other suitable manner.

At the` lower end of the parts 10 and 11 bosses 20 may be formed and inthe center of each of these bosses an indentation 21, as shown in Fig.4.

22 is a cylindrical block which is preferably formed of cast-iron, butmay be made of any other suitable unyielding material. Through thecylinder 22 is a longitudinai opening 23, which preferably has itscentral portion enlarged at 24 and is provided with lateral openings 25,communicating with the radiating portions. The block 22 is placedbetween the parts 10 and l1, when they are to be secured together, withits ends projecting into the bosses 20, as shown in Fig. 4, and forms,with said bosses, an unyielding connecting portion. Holes are thenpunched in the bosses 2O at the point indicated by the indentations 21,

and the flanges thus formed are expanded into the longitudinal openings23, as shown in Fig. 5, by means of a suitable tool, such as is used byboiler-makers for expanding the tubes of boilers. A perfectly-tightjoint can thus be formed between the interior face of the cylinder 22and the metal of the bosses 20. The several sections of' the radiatorcan now be placed side by side, as shown in Fig. 5, and secured togetherby means of. couplings 26, tting into the longitudinal openings 23 inthe usual manner.

I do not wish to limit myself to the exact construction shown, as thesections may be provided with any desired number of columns or lines,and other means may be provied for securing the sections together'without departing from my invention.

I prefer to fill the lower ends ofthe sections up to the lower edge ofthe lowest lateral opening 25 with cement 27, so as to prevent theaccumulation of water in the lower ends of the sections. It is usual toprovide the end sections with legs 28. These may either he formedintegral with 4the sections, as shown in Figs. (5 and 7, or they may besecured to the Seel-ions in any suitable manner.

It will he seen that the several sections of my radiator are securedtogether as effect.- ively as can lie done with the ordinary castironradiator. By tho use of sheet metal a radiator to withstand the samepressure as a cast-iron radiator can he made Very much lighter, or hymaking the sheet-metal radiator of the same weight as a cast-iron oneit: will withstand a much greater pressure. A great savingr in the Costof manufacture is also accomplished, as there is no loss in making thesheet-metal section, while in Casting a large percentage of the sectionsare lost, owing to defects in the castings. Any suitable ornamentationcan be stamped upon the metal of the section at the same time that thegeneral form is given to the metal.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is-

l. In a radiator for steam or hot water, a plurality of sections eachconsisting of a Wrought-metal radiating portion and a base, the basehaving' a longitudinal opening and openings communicating with theradiating portion, and the sides of the radiating portion being providedwith openings and with flanges surrounding the same, said anges beingadapted to he forced into the longitudinal opening of the hase, incombination with means for clamping the flanges of the radiating portionagainst the inner periphery of the base.

2. In a radiator for steam or hot water, a plurality of sections eachconsisting of a wrought-metal radiating portion and base, the hasehaving alongit-udi nal. opening and openings communicating with theradiating portion and the sides of the radiating portion being forcedaround the ends` and into the longitudinal openingsot' the hase, incombination with a eou pliug fitting the longitudinal openings of twoadjoining sections.

In a steam-radiator, a plurality of seetions each having one or morecolum ns or llues formed of sheet metal, hollow blocks of unyieldingmaterial carried by said sections and forming steam-tight joints withthe metal thereof, a filling of suitable material in the bottom of saidsections to prevent the aoeutnulation of water therein, and means forconnecting said sections through said blocks.

In testimony whereof I have hereunto set my hand and atlixed my seal 1nthe presence of the two subscribing witnesses.

FERDINAND SCHWEDTMANN Witnesses:

W. A. ALEXANDER, DAVID STANNARD.

